There's more to holding an educational class, training, or
seminar than choosing an open floor plan. Technology is an important part of any presentation. A well equipped space enables students to look up new information and the presenter to share media instantly. Not to mention it provides projectors and other audio-visual equipment for efficient presentation.
Does your chosen venue offer technology like bluetooth connected speakers, display screens, accessory lighting, microphones, and fiber internet? If not you may still make it work, though you'll need to account for the lack of technology. If you're doing a live recording of your class then you'll need both space and power outlets for video cameras and off-camera lights.
Technology-equipped class spaces in Chicago may even come with these devices. As well as trained staff to operate them, freeing up your time to focus on planning and presenting your lecture or training.